钢筋混凝土蜂窝型空腹夹层板固有频率的计算
发布时间:2018-12-19 06:59
【摘要】:针对周边简支及周边固支条件下的钢筋混凝土蜂窝型空腹夹层板,利用Reissner夹层板理论及Hamilton变分原理推导其固有频率计算式.利用SAP2000建立了蜂窝型空腹夹层板周边简支、周边固支、柱支承条件下的有限元模型.分析表明,周边简支、周边固支计算结果与有限元分析结果吻合较好,证明了所推导公式的正确性.周边简支计算结果与柱支承有限元分析结果误差较小,可用周边简支计算式近似计算柱支承条件下蜂窝型空腹夹层板的固有频率.
[Abstract]:For reinforced concrete honeycomb sandwich plates with simply supported and clamped edges, the natural frequency calculation formula is derived by using Reissner sandwich plate theory and Hamilton variational principle. The finite element model of honeycomb hollow sandwich plate under the condition of simple support, peripheral clamping and column support is established by using SAP2000. The analysis shows that the calculation results of peripheral simple support and peripheral clamping are in good agreement with the results of finite element analysis, which proves the correctness of the derived formula. The error between the calculation result of simply supported and the result of finite element analysis of column support is small, and the natural frequency of honeycomb hollow sandwich plate under the condition of column support can be approximately calculated by the calculation formula of simply supported peripheral support.
【作者单位】: 贵州大学空间结构研究中心;
【基金】:“十二五”国家科技支撑计划项目(2011BAJ09B01-01) 国家自然科学基金项目(50978064)
【分类号】:TU375
[Abstract]:For reinforced concrete honeycomb sandwich plates with simply supported and clamped edges, the natural frequency calculation formula is derived by using Reissner sandwich plate theory and Hamilton variational principle. The finite element model of honeycomb hollow sandwich plate under the condition of simple support, peripheral clamping and column support is established by using SAP2000. The analysis shows that the calculation results of peripheral simple support and peripheral clamping are in good agreement with the results of finite element analysis, which proves the correctness of the derived formula. The error between the calculation result of simply supported and the result of finite element analysis of column support is small, and the natural frequency of honeycomb hollow sandwich plate under the condition of column support can be approximately calculated by the calculation formula of simply supported peripheral support.
【作者单位】: 贵州大学空间结构研究中心;
【基金】:“十二五”国家科技支撑计划项目(2011BAJ09B01-01) 国家自然科学基金项目(50978064)
【分类号】:TU375
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